I bought it from a dinky dealer on a bring-a-trailer auction. From the carfax and the documentation that came with it, it looks as thought the PO was an elderly gentleman who owned it from new and it was only serviced it only at a MB dealership until 2 or 3 years ago. Then a couple of months ago his daughter donated the car in the san francisco area where it sold at an auction. Perhaps he passed? I dont have alot of detail, just 1-line records of bi-annual services at the dealerships. I can tell the car was very well loved but best guess it sat for 2-3 years with little use in the end. I feel strongly from my digging around that no shade tree techs have worked on this thing. It has R12 fittings.